The annual electricity cost is the product of the annual electrical energy consumed (see Annual Electricity Formula) and the electricity utility rate. This basis is appropriate when the operator wishes to compare leak repair costs directly to the compressor electricity bill.

\begin{equation}\label{eq:leak-survey-electricity-cost} C_{cost} = E_{annual} \cdot r_{elec} \end{equation}

Symbols

\(C_{cost}\)	Annual electricity cost of leaked air \([\unit{ \dollar\per\year}]\)
\(E_{annual}\)	Annual electrical energy consumed \([\unit{ \kilo\watt\hour}]\)
\(r_{elec}\)	Electricity utility rate \([\unit{ \dollar\per\kilo\watt\hour}]\)